France3 min read

How Long Does French Naturalisation Take in 2026?

The legal time limits for French naturalisation by decree, the realistic timeline from ANEF submission to a published decree, and why files vary so much.


French naturalisation by decree is a slow process, and it helps to know that going in. There is a legal time limit, but the real-world wait is usually longer and varies a great deal from one file to another. This post separates the legal rule from what actually happens, so you can plan with realistic expectations rather than the optimistic numbers some pages quote.

The law gives the administration a maximum of 18 months to respond to a complete naturalisation file. This limit is reduced to 12 months for applicants who have resided in France for at least ten years before applying. The administration can extend the period once, by a further three months, with justification.

It is important to read this correctly. The limit is the time the administration has to take a decision, which is a different thing from how long the whole journey feels. The clock starts when your file is complete, and getting a file to complete status can itself take time if the prefecture asks for additional documents.

The realistic timeline

In practice, the full path from submitting your file on ANEF to seeing your name in a decree published in the Journal officiel commonly runs longer than the headline limit, often in the region of 18 to 24 months, and sometimes more. The total depends heavily on which prefecture handles your file, since workloads differ widely across the country.

The journey moves through several stages. First, the prefecture examines your file, checks it is complete, and calls you for the assimilation interview. Then the file passes to the central administration, which carries out its own review before a decision is made. Finally, if naturalisation is granted, the decree is published and you are invited to the welcome ceremony. Each stage adds time, and a request for a missing document at any point can push the whole thing back.

Why files vary so much

Two applicants who apply on the same day can wait very different amounts of time. The biggest single factor is the prefecture, because some are far busier than others. After that, the completeness of your file matters enormously. A file that is complete, correctly translated, and properly documented from the start moves through examination faster than one that triggers repeated requests for more paperwork. Your individual circumstances, such as time spent abroad or a more complex civil-status history, can also lengthen the review.

What you can do

You cannot speed up the administration, but you can avoid adding delay of your own. Submit a complete file, with translations done by a sworn translator and civil-status documents that meet the current requirements. Respond quickly to any request from the prefecture, since unanswered messages are a common source of stalled files. Keep an eye on your ANEF account, which is where status updates appear.

Processing times shift with administrative workload and policy, and the figures here describe the situation in 2026. For the current legal limits and for guidance on your own case, check service-public.fr or speak to a qualified adviser.

A long wait is also time you can use. Meeting the civic exam condition early takes one requirement off your plate while the rest of the file moves. PassCitizen has the full official civic question set with practice mode and timed mock exams, free and with no account required.

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